these law enforcement agencies is the mayor and others have said at the federal, state and local level. and indeed, from the region. we have an unprecedented level of law enforcement support and engaged here and working very, very well. and very seamlessly with each other under the leadership of the fbi and gives me comfort. it should give the public comfort, as well. over here. yeah? >> process so far that helps you understand something maybe from the materials that helps you understand the level of complexity of the device or sophistication or origin of the materials to help to understand the domestic source or international source? >> i think i know what you're getting at. let me turn it over to rick who is going to i think not comment. >> thank you, governor. i can't comment on that aspect of that. what i think is important to say and that i would like to on behalf of the boston jttf today is say there's no known physical

eminent threat at any location might be conducting investigating the area. >> are there -- >> can you tell us, first of all, anything about the nature of the device? secondly, can you comment on the fact there has been a sweep of the area and how did two devices alluded them? >> i can't comment on that on the nature of the device right now. >> can you conclude -- >> also fatah you should guard at the local hospital? >> i won't say who might be in custody right now. >> can you confirm that i.c.e. a person of ocean avenue under custody and looking for a second person, a roommate in that unit? >> david, what i can say is i.c.e. is a component. they're active with us right now and interviewing witnesses with us and assisting us integrally with this investigation. >> there has been talk of photos

and one photo yesterday went viral and sort of a man on a roof. have you decided -- that photo. >> we are processing a lot of photographic, digital photographic evidence right now as several speakers said today including the governor. we encourage the submission of any photographic evidence but i can't comment on the -- on specific tips or leads right now. >> can you tell us about -- >> you said earlier -- >> can you tell us about the surveillance cameras in the area? are you able to use those and how they're helpful and what you're seeing on them? >> karen, i think commissioner davis can talk about that. i think we are processing all of the digital photographic evidence that we possibly can right now as quickly as possible with resources from fbi headquarters and quantico but i'd like commissioner davis to speak about the video cameras. >> thank you, rick. it's a basic investigative protocol at this point in time to secure all the video of the

area so even as we were removing victims yesterday, officers were assigned to go in to the local establishments and secure those videos. there are a large number of them. so there's a logistics issue right now. we are working with the fbi. they're sending special teams to process that information. it's our intention to go through every frame of every video that we have to determine exactly who was in the area. this is probably one of the most well photographed areas in the country yesterday. >> commissioner -- >> as far as people coming and going for the city work, personal use, very difficult to move around copley square. are you asking people to stay away? is that the best recommendation or come and go? >> we want people to come and go. live your life. we want you to be vigilant. there's no reason to not come in to the city. but we do have a threat and we are working diligently to try to reduce that threat. we want you to go about your

business. give us a little room in the copley square area. be patient with us there as we process the scene and trying to turn it back to the businesses and to the community as quickly as we can after that evidence is collected. >> can you comment on the pictures? you might have 100,000 pictures out there. what do you want people to look for? >> that's a good question, actually. that's a good question. what we would like is forwarding any photos that you have around the time of the blast and particularly in that area. but also, tell us what time those photos were taken. so we don't have to go through the electronic signatures. we have some data as to when they were taken. photos closer to the blast, just before, just after, those are going to be critical and trying to prioritize those but it would give us the photos and as much information that can help the investigators move forward. >> the event as part of the preparation and the devices

exploded -- >> there's no evidence of that. >> there's no evidence that the trash cans had been removed from the marathon as part of the security protocol? >> there's an eod sweep done. one early that morning and a second one was done an hour before the first runners came across. those two eod sweeps did not turn up any evidence. but because there is unrestricted access to the race course because it's 28 miles long, people can come and go and bring items in and out. >> commissioner, also, do you have any evidence that the three people confirmed to be dead, are they all thought to be victims or could one perhaps be the perpetrator? >> they're all victims as far as i know. >> can you -- >> how -- >> i'm sorry? >> responsibility for this? >> anybono. >> can you give us a breakdown of the impact of bombs and numbers which one was -- >> we have a number of 176

casualties that presented at area hospitals. that's includes hospitals on the south shore. not just boston. 176 is the best number right now. 17 of those individuals are critical at this point in time. three fatalities. >> sorry. so in terms of the two bombs, though -- >> you were saying that -- the bombing -- >> no one's in custody, right. no one's in custody. >> you have said there's an individual responsible for this. does that mean you're ruling out a group that's responsible for it? >> no. >> agent, you specified various locations in the greater eastern massachusetts and boston area. can you tell us how many locations you are looking at, how wide ranging outside of boston those are and why? >> as an ongoing investigation, our investigation certainly will not be confined likely to the city limits of boston. it would extend out to the

eastern massachusetts area. this will be a worldwide nflgs. we will go where the evidence and the leads take us. we'll go to the ends of the earth to identify the subject or subjects responsible for this despicable crime and we'll do everything we can to bring them to justice. >> do you know the point of origin -- >> the investigation -- >> receiving assistance of any sort? >> i can't comment on that aspect of the investigation right now. certainly, we'll use the full capacities of the fbi to the fullest worldwide event. >> can you tell us what came of the sweep of the department of the department and certain -- interview anyone there? anyone there of -- >> i think the best way to address that question is what i previously said earlier. we are interviewing a variety of witnesses right now and locations and ongoing and that is the most i can say about that right now. >> what can you -- >> address, what brought you to -- >> that would be commenting on specific leads and investigative activity that might compromise

our investigation and can't comment on that. >> was it helpful? did you learn anything from that? anything to aid the investigation? >> i would say we're continuing. we have multitude of resources on the street right now. the boston joint terrorism task force and many components on the stage with me right now. >> so that was part of it? it wasn't -- it did lead to something? >> i would say we're just -- we're out in the street in a variety of areas in the city of boston and outside the city of boston conducting an investigation where the evidence and leads take us. >> you said no sign of an imminent threat now. did you see -- >> i was not aware of any threat information prior to the marathon. >> did you aware of since? >> i'm not aware of physical threat information right now from any unexploded devices or further devices. no information and to the best of my knowledge there's no eminent physical threat anywhere

associated with this investigation. >> last question, last question. >> this is a -- what will you say to people outside of boston area who are watching this? >> i'd say to the folks watching this, we have a city that's resilient, a city that's working together. law enforcement's working on this issue. since it started. and you know? we need cooperation from the public. folks out there know that something is going on. give it to the fbi, the boston police. whoever law enforcement you want to give it to. it's a resilient city and a city to get by this and one incident that will not mark the city's history. >> thank you, guys. >> thank you.

>> good morning, i'm chris jansing live from boston, today. we have heard the very latest. first of all, let's get you caught up. two devices were found. this is significant. investigators inspected a lot of packages but only two of them were explosive devices. we also know three people are dead. more than 176 people were injured and went to hospitals in the blast. and there are 17 right now in critical condition. a prayer service is planned for tomorrow. the massachusetts governor also told people to expect heightened security. we will learn more about patients at a mass general news conference coming up shortly. there's another news conference next hour in washington, d.c. with the fbi and homeland security. and a lot of thank yous given out to all the first responders. they're being hailed as heroes this morning, lives were almost

certainly saved because of the concentration of first responders waiting for runners at the end of the course. now, the explosions came about 15 seconds apart at 2:50 when a very high concentration of runners were crossing the finish line. >> it was pandemonium. everybody just started running and screaming and saw people bleeding and, you know, it was just unlike anything i'd ever seen before. >> it was loud. it was really, really loud and then people just -- chaos everywhere. >> families around us with kids yelling and screaming and, i mean, we just wanted to try to get away as quick as possible. >> president obama addressed the nation but he did not use the phrase terror attack last night. this morning, many lawmakers are saying it is. >> any responsible individuals, any responsible groups will feel the full weight of justice. >> let me bring in congressman

benny thompson, democrat of mississippi and a member of the homeland security committee. congressman, good morning. i know you will be briefed today. what can you tell us right now? >> well, i think we can assure the public that congress is monitoring the situation. we're working with state and local partners to make sure we get all the evidence and i think the system worked. our responders were there. police, fire, health personnel. what we're now doing is collecting the evidence to try to get to the bottom of what really happened. >> is there any doubt in your mind at this point that this was likely an act of terror? >> well, i think before we tie it to an act of terror, it was a bad deed. whether it's a lone wolf, international terrorist related organization or what, we have to find the individuals involved. and then we can let the information we receive call what

it is. so, our state, federal, local individuals doing their job. let's make sure we catch the perpetrator or perpetrators who did this dastardly deed and let the facts drive us to an assumption or the facts. >> now, we know law enforcement said they weren't hearing any chatter on the usual channels that they monitor. but the southern poverty law center wrote a letter to attorney general eric holder warning, that quote, as in the period before the oklahoma city bombing, we are now seeing ominous threats from those who believe that the government is poised to take their guns. is this something you had heard anything about as a member of this committee? >> well, we have. we have had hearings that talk about both international terrorists as well as domestic terrorists. there are over 1,000 organizations identified here in this country with some domestic terrorist nexus so it's an issue.

as to whether or not it develops here in boston remains to be seen but all of the systems focused on trying to identify who the party or parties involved in this dastardly act. >> congressman benny thompson, thanks so much for being with us today. now i want to bring in tag romney, oldest son of former presidential candidate mitt romney. where were you? >> we were patriots day is a big -- >> holiday, right. >> i had taken my family to fenway park. we are at the red sox game and watched the marathon and hopped in a cab to go home just before the explosion happened. >> i'm sorry. are we going somewhere now? we'll go live. this is the news conference at mass general. >> removed nailed. >> could have come from the

environment or concentrated enough to conclude it kwame from the bomb? >> i think they came from the bomb but i cannot be sure. >> how many amputations have you performed and how many more are planned? >> at this point if i have my numbers right, we have performed four amputations and there are two more limb that is are at risk but i hope that we'll save those legs. >> are they in what you would call critical condition or stable? are they in intensive care? >> yes, they are in the intensive care. they're in critical condition. but at this point, we have stabilize their vital signs and hemodynamic situation is under control. >> what are the injuries? can you describe what's placed them in critical condition? >> lower extremity, major injuries. and from these injuries, they bled a lot. we control the bleeding rather rapidly but certainly they lost a lot of blood and caused

physiological problems. >> do you have foreign nationals? can you give us an idea about the nationality of the people you are treating? >> as far as i know all of them are americans. >> can you tell us an age range, doctor? >> the younger patient so far was 28 years old and the older patient was 71 years old. >> we heard that there could have been internal bleeding -- >> viewed by law enforcement? >> i most of the patients in the intensive care unit are still intubated and cannot be interviewed. >> what can you tell us about their emotional state and that of their loved ones? >> it's obviously an extremely sad day for all of us but even more so for the patients and for the relatives. i had the pleasure of interacting with many of the relatives and obviously they're shattered by the events. we're offering the emotional support and we have pulled all our resources to support the

patients not only for the disease but also for the emotional status. >> -- identified. >> everybody has been identified. >> doctor, you seem to talk about injuries of the lower extremities. is it unusual to have such a concentration of injuries the lower extremities in a blast or more all of the body head and upper body? >> it is not unusual. this bomb, obviously, was placed probably low and on the ground and, therefore, lower extremity injuries are to be expected. >> no internal bleeding? yesterday we heard there might be internal problems. >> there are on a few patients, some internal problems that we are still working up and i don't have further information on this one. >> are all patients conscious or any unconscious? >> all -- most of the patients are conscious. but we do have patient who is are medically sedated to alleviate the pain at this point and therefore we don't have a full evaluation of their mental

status yet. >> did you screen for biological or radiation with these patients? >> it doesn't an i peer that we have an issue with that at this point. >> you mentioned complications from the blood loss. who what are the complicatiocom? >> the complications is that the heart made compensate and multiple other organs in the body may be driven in to failure because of the blood loss but we were very rapid in replacing the lost blood and i think that for the most part we've saved the patients from these problems. >> doctor, can you describe -- >> -- spectators, can you give us an estimation of how many -- >> i don't think that any of them were runners. i think they were all spectators. >> that's correct. we did treat some runners but we have not included -- those are the three patients that i said we received from the marathon but they were not traumatically

injured and one was observed overnight and then the others treated and released. >> has anyone talked to you about what happened, what they saw? >> not to me in the emergency department. george? >> no. we haven't had anymore information, unfortunately. the teams were extremely busy and concentrated on providing care last night and we tried to focus on that and do nothing else but that. >> doctor, as the investigators try to conduct their investigation, did they have to clear it with you before they speak with the patients and the fbi? >> well, we are always there by the patients and we make sure that they do not suffer unnecessarily at this early point so we are all in communication to make sure that the patients can talk only when they can really talk. >> can you tell us how many are medically sedated? >> i'm sorry? >> can you tell us how many are medically sedated? >> i believe there must be six or eight at this point.

the last time that i saw the patients were -- was about an hour ago. and depending on what has happened to two of them, it's between six and eight. >> what are the prognosis for the six or eight, doctor? >> the prognosis will probably be okay. i think that we have stabilize the patients well. they have stopped bleeding. they're still things to be done but i really hope that the outcome will be optimal. >> do you expect anymore loss of life? >> -- released? what's the earliest time you expect them to be released? >> i think that the first patients may actually be ready to be released in a few days but this is too early to predict that. >> have you seen anything like this before? >> to that extent, no. >> in terms of severity or quantity? >> in terms of quantity. >> the four amputations, four separate patients, correct? >> yes, correct.

>> how's your staff doing? are you well staffed or have you had to have people come in over overtime? >> we were very well staffed and we were extremely proud of the resources that the hospital placed on this event. quite frankly, it was one of the proudest moments in my life when we went there in the middle of the mayhem. i saw endless doctors coming from all over mgh to offer their help in a very, very organized fashion. so, we absolutely had no problem with staffing. >> i would also add that the timing, some of physicians and nurses work from 7:00 to 3:00 and then 3:00 to 11:00 on the evening shift and the day shift all volunteered and said, we'll stay here as long as needed. so that helped us out, as well. >> and of the amputees, how many were traumatic versus in the hospital? >> almost all of them had such

severe trauma in the lower extremity it was beyond salvation so i would consider them almost automatic amputees. we completed what the bomb had done. >> doctor, could you comment on what the last 24 hours is like for you, your staff as a doctor, as a member of this community? what's the experience been like for you? >> the experience is, obviously, overwhelming. we are all extremely sad. we are suffering emotionally for what happened to the people of boston and many others. at the same we can't feel but proud because the community responded in an amazing way. suffice it to say that some of the trauma group that happened to be outside the city jumped on

plains immediately to come back and they did come back within hours. one of our physicians was actually running the marathon and dehydrated as he was, he came back immediately after he finished the marathon to offer his help. so yes. it is difficult moments for all of us but at the same time, we feel quite proud for what we've been able to offer and appreciative for the opportunity. >> can you describe the emotional toll? how did it manifest itself with some of your staff? was this, to say overwhelming, not trying to exaggerate this, but how did it manifest itself? >> we're all trauma surgeons so we quite used in seeing unexpected events to a very large scale so even if we are emphathetic and we always stay by the side of the patient through the physical and the emotional disaster, we'll know

how to control our feelings and do what is best for the patient rather than focusing on ourselves. >> doctor, how much do you think having all those first emergency workers on the scene factor in the survival rate of the people there? >> i think it was an amazing response and as far as i understand, all these details are still not clear and mind you i spent the larger part of last 15 hours taking care of patients and not learning the details but i think it was an amazing response and because of the rapid free hospital response life was able to be saved. >> doctor, is your team exhausted or getting rest or able to just keep pushing forward? >> we keep on pushing forward. thank god, again, we have endless resources and we're able to keep on operating and providing care. >> doctor, this may seem really obvious question but the extra materials that may have been

packed in to these bombs, how does that exacerbate the trauma? >> well, after a bomb, there is a number of traumatic injuries. and some of them is a direct effect of the bomb. when the extremities are severely damaged or internal bleeding, for example. but then, there is secondary injury from the bomb blast. the wave of the bomb that can push people away can throw them. and hit them against walls. and there's also another form of injury which is from the particles that are broken and embedded in people. so we have seen all three of them after this event. >> doctor, your colleague at brigam and women's dr. walls concluded all the shrapnel was environmental and none intruzic to the bomb. >> i think it is still getting

details of all the events that happened and, obviously, it is very difficult to conclude based on initial impressions. i wouldn't exclude completely the possibility that some of these fragments are environmental but my opinion is most of them were in the bomb. >> doctor, when's the security like in there? oo are there guards watching the patients? >> so the moment the intensive care units obviously have restricted access. there is increased security around all the hospitals in the city and you can see some of the police around this campus. that is a precautionary measure. my understanding is that all of the major hospitals have been given the same protection. >> doctor, just getting back to your previous answer, you said it's your opinion that there was extra material in the bombs. how do you reach that?

what's the tip-off? >> because of the consistency of the fragments, most of them are pellets, some of them are nail-like. so i think it's unlikely so squint if they were pulled up from the environment. >> is it what you said -- you were saying that some were pellets and some were -- >> nails. or sharp, sharp objects. i cannot say what they are with certainty but that's how they look like. >> do you know how many that you have took out? >> they are numerous. numerous. there are people who have ten, 20, 30, 40 of them in their body or more. >> you have a reason you handed that over to investigators, the shrapnel? >> we have -- we're close -- we're working very closely with investigators and we're handing them whatever evidence we can find. >> what are you seeing in terms of resiliency from the patients?

>> i think that the patients responded really, really well. the patients that were able to talk when they first arrived and they were not immediately sedated and intubated for the purpose of an operation. we're amazingly resilient and pulling it together and, quite frankly, because of the patients our lives made easier and provide better care. the patients were really amazing. >> can you be specific about that? can you give some specifics about this? >> most of the patients were calm. they were responding to our questions. they allowed us to examine them from top to bottom in detail. and they -- when we had time to explain our decisions and the course of care that we intended to take, the patients agreed. it was a very, very calm and

collective response by the patients. >> i know you can't be sure but would you say none of your patients are in danger of dying? >> yes. it is too early to decide that but at this point i'm extremely happy with how things are doing. >> doctor, how do you tell somebody you might have to take their leg? >> i'm sorry? >> how do you tell someone you might have to take their leg? >> it is a devastating thing. it is extremely difficult to come to this. but mind you, these patients with amputations were the most severely ones. severely injured ones. and therefore, quite frankly, they were the ones that were immediately intubated, immediately rolled in to the operating room and no realtime to have a lengthy discussion, the focus was on saving the life from bleeding. >> doctor, have you any patients related to each other? >> as far as i know, we don't have any patient at mgh that's

related to each other. i don't know whether there are relatives of them transferred to other hospitals in boston. >> that is the case. we have patients here who have relatives that have been admitted to other boston hospitals. >> when do you plan for another update? >> is is there another update planned? >> as we get more information. there's not a set time right now. >> dr. george, can you tell us your name? >> velmahos. >> thank you. >> thank you. >> chief of trauma surgery at mass general. >> and so an update from mass general hospital and you get an idea of the devastation of the injuries and in many ways how remarkable it is that more people did not die. three people confirmed dead. 176 sent to local hospitals and

we were talking with tag romney and you were saying it's amazing the cowardice versus the first responders. >> the people, bystanders pulling down the flags and getting things out of the way and rushing to help. people running the hospital to give blood. i mean, it's a horrible tragedy but it's wonderful to see the goodness of americans and how generous they are and how brave we are. >> this is your home. how do you process this? you're here with one of your sons. what do you say to your children? >> you know, it's difficult to know what to say. patriots day is such a -- it's the best day of the year in my opinion in boston. the spring started. it's the boston marathon, the red sox. it's culture and sports and history coming together. lexington green and the first shots fired in the revolutionary war and then this horrible thing happen. and i was talking to our kids

last night. they came in to our room and we talked. this is okay. we'll come together as a country. we'll -- we will defeat whoever it is trying to attack us. we'll get to the bottom of it and be stronger as an in addition. >> did you talk to your dad? >> i did. i posted a picture just before the explosion and let people knowing we were having fun and people were worried when -- with the timing of those things. >> of course. >> he called, my mom called, they were at different places. we had a chance to talk for a minute about this tragedy and just how horrible it was. >> tagg romney, thank you so much for being with us and as your son is standing by here, thank you so much. >> thank you. thanks for having me on. >> among the heartbreaking stories of loss at the bombings, brothers who each lost a leg and 8-year-old richard martin just gave his father a hug at the finish line when he was killed. the boy's mother had surgery for

a brain injury. his 6-year-old sister lost her leg. let's bring in democrat john tierney and this is obviously your home state. you must be stunned this morning. >> we were stunned yesterday and continue to be stunned today. this is devastating news and so many families going through such trau trauma. >> you are also the ranking democrat on the national security homeland defense and foreign operations committee. what are you hearing about the investigation, congressman? >> well, we're hearing that the fbi is in the lead i think as you already know and the president staying up to date on all of this but we know that we have every single agency at the federal, state and local level coordinating well and working under the direction. they're looking for every single clue they can and at the same time, you know, coming the rescue and help and aid to the extent they can of the people impacted by this. so i think you are going to find it's probably a very concerted and well coordinated effort.

may take sometime to get to the bottom of things but i believe that we will. >> what are the questions you want more answered when you get your briefing today and understanding that, you know, we are less than 24 hours in to this? >> i first want to know that everything that can be done is done for the people injured and families. i believe that that's the case. i know that you had an interview with the doctors at one of the hospitals and i think the response is phenomenal but we want to make sure that if there's anything else that can be done, should be done for the families that it gets done. we want to make sure that the investigation is going along as i said with the coordination necessary to get as quickly to the root of this as we can and make sure we ascertain what kind of an event this was and who's responsible for it and move on from there. >> are you concerned about what this means in the future? there's already talk about what it would mean for a future boston marathon, what it would mean for other large public events. because it's extraordinarily difficult, obviously, if not impossible to prevent something

like this from happening. >> i understand that. i know that we'll continue to have events. we are not going to change the way we live but probably change the level of caution that we have on all the events commiserate with the type of activity that it is and also important to find out what the nature of this event was and that will have some impact on whether or not we were going all that could be done to avoid or lessons to be learned. >> i understand in addition to obviously you being from massachusetts, you have another connection, a member of your staff was on the bomb squad? is that right? >> yeah. we have one member of our staff in the national guard on the bomb squad and called in immediately and is there now working with the fbi, nation add guard and the local authorities and whenever they're called in to take action on that we got, that's his specialty. >> did you have a chance to talk to him personally, congressman? and if so what did he tell you? >> no. i didn't have a chance and i don't want to interview with his

responsibilities right now but we informed the office of why he wasn't in yesterday afternoon, today obviously. we won't interfere with his responsibility. we'll keep track of him as best we can but he's doing his job and he was quite a soldier in iraq will do a good job as they all will. >> so many of them already there the. thank you for taking the time. >> thank you. >> first responders who expected to be treating runners for dehydration and exhaustion found themselves at ground zero for dozens of severely wounded. when the bombing happened, you can hear the urgency in their voices on these radio calls. >> we're reports of two explosions here. we have -- a dozen people with serious injuries. >> two explosions. we have a multi-casualty incident here. we have at least a dozen serious

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smarter, and sharper. we are tyco integrated security. and we are sharper. we just got a live update here in boston. investigators are still interviewing witnesses they say. they're trying to put together a time line and they're particularly asking for help from the public. and explosives specialists and forensic specialists will be brought to the scene. >> this remains a very active investigation. our ongoing investigation in various locations throughout the area goes on. however, there are no known additional threats. we continue to interview various witnesses and process the crime scene. >> i want to bring in michael lighter, nbc news terrorism expert and former director of the national counterterrorism center and nbc news justice

correspondent pete williams. michael, let me ask you about the things we heard at the news conference. hundreds if not thousands of news photos and videos taken at the finish line yesterday, they're particularly interested in ones that were taken, obviously, during, right before and right after these bombs exploded. it seems like an incredible pain staking search, almost a need until a haystack. what in particular will they be looking for? >> well, it is a need until a haystack but at least now they have enough of the timeline to know the period during which they really want to dig in to this media video, photographs and the like. what they're probably going to be looking for is anyone who looks a little bit suspicious. frankly, they don't know what that is at this point and such pain staking work. a lot of what shows up on these photos and videos won't actually seem relevant until they get

additional information from somewhere else and this will take hundreds and hundreds of man hours of pouring through this. whether there will be someone wearing clothing suspicious on a relatively warm day or carrying a large backpack, i mean, those would be sort of smoking guns. but they're going the look to map all of this against other video cameras in the region and try to see if anyone looks to be operating in a manner they're not paying attention to the race an might have been doing something untold and takes serious time. >> we also learned in the last hour that the crime scene has been shrunk from 15 blocks to 12 blocks but obviously, again, another slow and pain staking process. this is as they have described it the most complex investigation that they have ever undertaken in boston. they've got a lot of work to do, don't they? talk about the work that's being done in the 12 square blocks. >> well, they have a tremendous amount of work and i think the most impressive thing from that

press conference is not the particular substance but they have everyone on the same investigative page. led quite force bring by the fbi special agent in charge coordinated with security of boston state police and and they're going to look at every car, talk to everyone who's there. take pictures of everything because, again, what they collect now may not be relevant until a day, a week, a month from now as additional information is collected and suddenly you find out, ah, indeed, that license plate was connected to something else we saw that was suspicious. so it is collecting as much as they can. they will be overwhelmed but slowly but surely and combing through that and connects with other potential leads. >> there's a physical evidence but there's also what they know about these kinds of people, past experience, history tells them. and you have a suspicion that

when all is said and done, whoever perpetrated this may well be somebody with ties to boston. why? >> i do. and believe me, that's very early speculation and i wouldn't let that control the investigation. the investigation has to be very, very broad right now but it's largely because although the boston marathon is a worldwide event, it strikes me that the selection of the target, the timing of the attack does suggest some knowledge and understanding of the dynamics of the crowd and that race and the significance of that event. now, it's not say that other people in the world don't know about the boston marathon but it's a special day patriots day to the people of new england and in that sense, i think it's likely that the person had -- the person or group has some ties to the region and i want to stress that doesn't help all that much because it doesn't tell you a domestic group, an international group with ties of new england a lone wolf

unabomber-type. it might give you an initial direction but not much more than that. >> michael leiter, thank you so much. been with us throughout this. thank you so much. meantime at the white house, president obama this morning will be briefed on the latest developments by fbi director robert mueller and other senior members of his team. white house official says the boston bombings appear to be an act of terror. although the president stopped short of calling the attack terrorism. now, house homeland security committee chairman michael mccall had this to say. >> we still do not know who did this or why. and people shouldn't jump to conclusions before we have all the facts. but make no mistake, we will get to the bottom of this. and we will find out who did this, we'll find out why they

did this. >> simultaneous bombing, mass casualties, spectacular event. all the briefings we ever get on a potential terrorist attack, all the ingredients that are in there and we saw that, unfortunately, yesterday which led me to call this an act of terrorism. >> let's bring in matt visor, "boston globe" white house correspondent. i was thinking listening to the president last night it's a tricky line that presidents walk in horrific situations like that. the american people want to see them, hear from them. they want to be calmed by their words, and yet, in those early hours, there's really very little that they know and there is this sort of information vacuum. your thoughts on that? >> yeah. i mean, president obama stepped to the podium in the briefing room, you know, just a little over three hours after this incident took place. the white house, you know, was going on very little information at that point. it seems.

it's something you want to hear from the president, a major incident has occurred in a major american city but there is a lot of information and, you know, there's hesitancy to jump to conclusions of what we know and don't know. >> yeah. and this is obviously a time the president expecting to be focused on three big domestic agenda items. immigration, gun control and of course the budget. what is the impact so far and what's the impact likely to be from this tragedy on that agenda? >> well, like you say, i mean, this week started out going to be talking about a lot of different domestic legislation. that seems to be put on hold. i mean, the flags are flown at half staff here in washington. senator harry reid started this morning on the senate floor talking about this incident. senate minority leader mitch mcconnell did the same. house republican leaders, the same. we are having people talk about boston and what this means and means about terrorism, what this

means about our own security. and it's diverting a little bit from the discussion we thought we would be having of gun control and immigration and budget issues and little early to tell how much we'll be derailed and how much attention shifted but so far it's dramatic and all the attention's shifting toward boston and what happened there and what it means. >> yeah. and the immediate impact, matt. what kind of security changes are you seeing around the white house and in d.c. in general? >> you know, there's a little bit -- you know, when you hear sirens, you are wondering now. you know? whereas before you expected a motorcade or something like that. there's more security on the metros i noticed this morning. but, you know, it's hard to tell. the white house secret service said that they have extended the perimeter a little bit, the security perimeter around the white house out of an abundance of caution. there's a little bit of a heightened sense of security. more out of caution and it does not appear like there's any

other threats we know of. >> matt visor, thank you, matt. >> thanks, chris. >> and we're waiting to see, we're told that the white house flag will be lowered to half staff. as they have been in many places around the country. and as news of the bombings spread, hundreds of thousands of people tried to get in touch with loved ones over the phone. overwhelming the cell system. one thing that did work, though, was e-mail, facebook, twitter. a lot of people posting as a way to look for friends and family. google set up a people finder website so that folks go to post information or to look for someone. as of this morning, google is tracking about 5,200 records. meantime, boston police department is using twitter to ask for tips and providing information on the investigation using hashtag tweet from the beat. announcer: where can an investor

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pictures of the flag lowered to half staff at the white house an live here in boston people devastated, absolutely stunned by what happened here. the description of the aftermath of the explosions at the finish line of the boston marathon have evoked images of war which is exactly what it looked like and how it felt to survivors. brent o'connor joins me now. he was watching the race yesterday. brent, thank you for being here. >> hi, how are you? >> your story is made even more extraordinary that you were living in new york on 9/11. now you're living here in boston. >> yeah. it's almost surreal. you know, yesterday, the events that occurred, it was really, really compelling for me. i work a communications agency here called rigging communications and i was with one of my colleagues and we are walking around just enjoying the atmosphere, the great things going on and we were at the lennox hotel and having a new

balance event and my colleague lindsay and i and just walking and then separated and then the next thing i know i hear a boom and then another boom and it just really brought me back to basically what happened on september 11th because at first it was the first building and then the second building and i'm like, well, what is going on here? then i saw all the smoke and all this chaos. >> you had no doubt here what had happened? >> i did actually, once i saw the fire and the smoke coming up from the building, i thought to myself, oh my gosh. like, something's not right. something is certainly going on an i just decided to -- i kept walking away from the area and obviously what's great about boston is we're resilient. and i saw first responders, whether it be like the police or people actually working with the marathon to run over to try to help people because it was very chaotic. >> can you even describe the

chaos? what was -- i mean -- >> it was so surreal that it just felt like there was a -- it was an explosion. you thought, like, you were at a factory or something and they had a big explosion. and at first, you know, within those seconds no one actually knew what was going on. and people are running to try to -- to go to the finish line and finish the marathon and they were all stopped. they just could not do that. and, you know, within a matter of seconds after that, you know, all of boylston street and the finish line just became very chaot chaotic. >> good thing we have taken away is how people responded to. this we are glad you're okay and thank you so much for staying around to talk to us. >> thank you so much. >> that is going to wrap up this hour of "jansing & company" live from boston. thomas roberts is next. >> coming up on the agenda this city of boston now coming together in the midst of the

horrifying tragedy they witnessed there. what we do know where we stand in the search for a suspect. we'll talk with former massachusetts congressman barney frank. plus, home grown versus foreign acts of terror. how do we know the difference? could this be al qaeda or just al qaeda inspired? we'll talk with senator chris murphy of connecticut about the newtown families caught in the crosshairs of yesterday's attack. more coming up at the top of the hour here on msnbc. jeanette knows a lot about her buildings maintenance company because she tracks everything. through her customer relationship management program, she knows what her clients want done, how they'd like the job completed and what they thought of the work. for more, watch "your business" sunday mornings. we've all had those moments.

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